Question

in the theory of time series,
shortage of certain consumer goods
before the annual budget is due to:
Secular trend
Cyclical Variation
Irregular Variations
Seasonal Variation​

Answer 1

Answer:

In the theory of time series,shortage of certain consumer goods

before the annual budget is due to Seasonal variation.

Step-by-step explanation:

• Seasonal variations refer to the variations caused annually by the seasons of the year. Also includes the variations of any kind which are periodic in nature and whose period is shorter than one year. ( t < 1 year).
• A Seasonal Variation (SV) is a regularly repeating pattern over a fixed number of months.
• If you look at time-series you might notice that sales rise consistently from month 1 to month 3, and then similarly from month 4 to month 6. There appears to be a SV repeating over a three month period, where sales get higher each month for three months.

Answer 2

Shortage of certain consumer goods before the annual budget is due to SEASONAL VARIATIONS.

Key Concepts:

• Seasonal Variations caused by the seasons of the year on an annual basis, hence periodic in nature with a shorter time period (less than a year).
• Sales increase consistently from month 1 to month 3, and then again from month 4 to month 6.
• An SV that repeats over a three-month period, with sales increasing each month for three months.